LM4051AIM3-1.2

Product Overview

Category

The LM4051AIM3-1.2 belongs to the category of voltage references.

Use

It is primarily used as a precision voltage reference in various electronic circuits.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low dropout voltage
• Wide operating temperature range

Package

The LM4051AIM3-1.2 is available in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of LM4051AIM3-1.2 lies in its ability to provide a stable and accurate voltage reference, ensuring reliable performance of electronic systems.

Packaging/Quantity

The LM4051AIM3-1.2 is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Output Voltage: 1.2V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 200mV (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4051AIM3-1.2 has three pins:

1. VOUT: Output voltage pin.
2. GND: Ground pin.
3. VIN: Input voltage pin.

Functional Features

• Precise voltage reference: The LM4051AIM3-1.2 provides a stable and accurate 1.2V reference voltage, ensuring precise operation of connected circuits.
• Low dropout voltage: With a low dropout voltage of 200mV, it can operate efficiently even when the input voltage is close to the output voltage.
• Low temperature coefficient: The LM4051AIM3-1.2 exhibits a low temperature coefficient of 50ppm/°C, ensuring minimal voltage drift over a wide temperature range.
• Low power consumption: It consumes very low power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable performance.
• Small package size allows for space-constrained designs.
• Wide operating temperature range enables usage in various environments.
• Low dropout voltage ensures efficient operation.

Disadvantages

• Limited output voltage options (only 1.2V in this case).
• Requires an external bypass capacitor for optimal performance.

Working Principles

The LM4051AIM3-1.2 utilizes bandgap reference technology to generate a stable 1.2V output voltage. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This design ensures accurate voltage output across a wide temperature range.

Detailed Application Field Plans

The LM4051AIM3-1.2 finds applications in various electronic systems, including but not limited to: - Precision analog-to-digital converters (ADCs) - Digital-to-analog converters (DACs) - Voltage regulators - Battery management systems - Portable devices - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM4051AIM3-1.2 are: - LM4040AIM3-1.2: Similar specifications and package, with a slightly different pin configuration. - LT1236ACS8-1.2: Higher initial accuracy and lower temperature coefficient, available in an SOIC-8 package. - MAX6126AASA25: Ultra-low noise voltage reference with a 2.5V output, available in an SOIC-8 package.

These alternative models provide similar functionality and can be chosen based on specific requirements and availability.

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